Societies and Academies

Abstract

PARIS Academy of Sciences, August 6 (C.R., 199, 393-444). H. DESLANDRES:—A simple and general relation of the molecular spectrum with the electrons and rings of electrons of the constituent atoms. SERGE BERN STEIN: The absolute convergence of trigonometrical series. A. BIGOT:—The Bathonian reefs of Normandy. SAUVEUR CARRUS:—The trajectories of the meridians of a surface of revolution. THADEE PECZALSKI: Study of the internal radiation of the electric arc. L. COLOMBIER:—The variation of the electrolytic potential of nickel with the acidity. PAUL ‘CORRIEZ: The X-ray diagrams of various peranthracites and true anthracites. MLLE. ELLEN GLEDITSCH and ERNST FOEYN: The actinium-uranium ratio in radio-active minerals. From the examination of seven minerals from different sources, the value 0-128 is deduced for this ratio. PIERRE AUGER: Absorption measure ments of the Y-rays by the method of coincidences. The case of the radiation of excited beryllium. ANDRE DE PASSILLE and MARIUS SEON: The thermo chemistry of the ammonium phosphates. HENRI TRICHE:—Quantitative spectrographic analysis: ap plication to silicon. Louis MEDARD: New results on the Hainan effect of the hydroxyl radical. Data are given for formic acid, monochlorhydrin, glycol, hydroxylamine and glycerol. MME.SIMONNE ALLARD: The structure of a paraxylylene. YVES RAOUL: A new technique for the determination of hordenine. MARCEL MATHIEU and CONSTANTIN KURYLENKO: Remarks concerning the absorption of acetone by the nitro-celluloses. Discussion of the effects of the presence of traces of water during the absorption of acetone by the nitrocellulose. ANTONIN LANQUINE: The structure of the Provencal chains in the north of the eastern Varois region. PAUL CORBIN and NICOLAS OULIANOFF: Aerial photography in the service of geology. An account of work done in the Alps. JACQUES FROMAGET: New observations on the age and structure of the oldest sedimentary and crystalline formations to the north of Tonkin. PAUL SELTZER: The influence of a forest on the tem perature of the air. Discussion of continuous records of temperature carried out in the forest of Haguenau (Bas-Rhin) with the view of determining the influence of the forest on the temperature of the air. PAUL BERTRAND: Observations on the classifications of the true Pecopteris. AUGUSTE and RENE SARTORY, JACQUES MEYER and HANS BAUMLI: An attempt at differentiating between the para sitic cellulolytic fungi of paper. Comparison of the action of Cladosporium, Fusarium and Aspergillus on pure cellulose, with special reference to the effect of the culture media added. LEON BINET, M. LAUDAT and J. AUCLAIR: The lowering of the alkaline reserve and the movement of the chlorine in the blood in the course of hyperthermia produced by short waves. The rise of temperature produced by short waves (1518 metres) leads to a fall in the alkaline reserve of the blood plasma accompanied by a slight increase in the proportion of chlorine in the plasma and a slight fall in the number of corpuscles.